Update for feedback

Author: Felicity Chapman

change-notes/1.21/analysis-cpp.md

@@ -7,7 +7,8 @@
 | **Query**                   | **Tags**  | **Purpose**                                                        |
 |-----------------------------|-----------|--------------------------------------------------------------------|
 | Call to alloca in a loop (`cpp/alloca-in-loop`) | reliability, correctness, external/cwe/cwe-770 | Finds calls to `alloca` in loops, which can lead to stack overflow if the number of iterations is large.  Newly displayed on [LGTM](https://lgtm.com/rules/1508831665988/). |
-| Call to function with fewer arguments than declared parameters (`cpp/too-few-arguments`) | Correctness | Find all cases where the number of arguments is fewer than the number of parameters of the function, provided the function is also properly declared/defined elsewhere. Results are displayed by default on [LGTM](https://lgtm.com/rules/1508860726279/). |
+| Call to function with fewer arguments than declared parameters (`cpp/too-few-arguments`) | correctness, maintainability, security | Finds all cases where the number of arguments is fewer than the number of parameters of the function, provided the function is also properly declared/defined elsewhere. Results are displayed by default on [LGTM](https://lgtm.com/rules/1508860726279/). |
+| Call to a function with one or more incompatible arguments (`cpp/mismatched-function-arguments`) | correctness, maintainability | Finds all cases where the types of arguments do not match the types of parameters of the function, provided the function is also properly declared/defined elsewhere. Results are not displayed by default on [LGTM](https://lgtm.com/rules/1508849286093/). |
 | Use of dangerous function (`cpp/dangerous-function-overflow`) | reliability, security, external/cwe/cwe-242 | Finds calls to `gets`, which does not guard against buffer overflow. These results were previously detected by the `cpp/potentially-dangerous-function` query. Results for both queries are displayed by default on LGTM. |
 
 ## Changes to existing queries